<notempty name="class">
<ul>
   <volist name="class" id="val">
    <li>
      <a>
        <b>{$val['type']}{$val['name']}</b>
        <span>￥{$val['price']}</span>
        </a>
      <a href="{:U('Signup/sign',array('class_id'=>$val['id']))}" class="blue-btn">报名</a></li>
    </volist>
</ul>
</notempty>